/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
  background-color: #f5f7fa;
  color: #333;
  line-height: 1.6;
}

#app {
  min-height: 100vh;
}

/* 布局样式 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-header {
  background: #fff;
  padding: 20px 0;
  margin-bottom: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.page-content {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
}

/* 卡片样式 */
.activity-card {
  border: 1px solid #e4e7ed;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
  background: #fff;
  transition: all 0.3s ease;
  cursor: pointer;
}

.activity-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.activity-title {
  font-size: 18px;
  font-weight: 600;
  color: #303133;
  margin-bottom: 8px;
}

.activity-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 14px;
  color: #606266;
}

.activity-description {
  color: #909399;
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 16px;
}

/* 状态标签 */
.status-tag {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.status-pending {
  background: #fdf6ec;
  color: #e6a23c;
  border: 1px solid #f5dab1;
}

.status-approved {
  background: #f0f9ff;
  color: #67c23a;
  border: 1px solid #c2e7b0;
}

.status-rejected {
  background: #fef0f0;
  color: #f56c6c;
  border: 1px solid #fbc4c4;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .container {
    padding: 0 10px;
  }
  
  .page-content {
    padding: 15px;
  }
  
  .activity-card {
    padding: 15px;
  }
  
  .activity-meta {
    flex-direction: column;
    gap: 8px;
  }
}

/* 工具类 */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mb-20 {
  margin-bottom: 20px;
}

.mt-20 {
  margin-top: 20px;
}

.flex {
  display: flex;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}